Mechanical refrigeration



March 24, 1931. c. c. SPRE EN 1,797,344

MECHANICAL REFRIGERATION Filed Aug. 6. 1926 3 Sheets-Sheet l Ch ar7es a. 'bprcon Fig. I [TIT/971652:

A t't orn aye March 24, 1931. c. c. SPREEN 1,797,844

MECHANICAL REFRIGERATION Filed Apga, 1926 s Sheets- Sheet 2 Charles P B Q [raven tor A ttorneys March 24, 1931. c c, sp I 1,797,844

MECHANICAL REFRIGERATION Filed Aug. 6, 1926 3 SheetsSheet 3 Charles C 8 not:

441/ j/aww .Attornays Patented Mar. 24, 1931 UNITED 1 STATES "PATENT OFFICE CHARLES C. SPREEN, 013 DETROIT, MICHIGAN, ASSIGNOR TO KELVINATOR CORPORA- TION, OF DETROIT, MICHIGAN, A CORPORATION 01 MICHIGAN mncrmmon. REFRIGERATION- Application filed August c, 1926. Serial No. 127,530.

My invention relates to mechanical refrigdetachably connected at 34 to the condensed oration, and particularly to unitary fluidrefrigerant supply duct 29, and its outlet con coolers, and the principal object of my innected to an expanded refrigerant return duct vention is to provide a new and improved 35 connected by means of a connection 36 fluid-cooler of this type. In the drawings to the inlet duct 22 leading to the compresaccompanying this specification and form- 301' 21. ing a part of this application I have shown, Also positioned within the brine tank 30 for purposes of illustration, one form which are a pair of fluid-cooling coils 37 each having my invention may assume. In these drawits inlet 38 connected to a fluid supply duct i e 39 and its outlet 40 connected to a cooled Figure 1 is a front elevation of this illusfluid delivery duct 41 projecting through the trative embodiment of my invention, front wall 14 of the cabinet 11 and leading Figure 2 is a vertical section parallel to the to a drinking fountain 43 through a suitable front of the fluid-cooler taken on the line control valve 44 and to a delivery orifice 45 2-2 of Figures 3 and 4,

Figure 3 is a horizontal section taken just within the top of the fluid-cooler on the line 33 of Figure 2, while Figure 4 is a second horizontal section taken on the line 44 of- Figure 2.

The embodiment of my invention; herein shown comprises a cabinet ll'provided with side walls -12 and a rear Wall 13 and a front through a second suitable control valve 46.

The cabinet 11 is also provided with a suitable cover 47 arranged to close the upper end of the cabinet 11, and therefore the upper end of the refrigerating compartment 16, and provided with a pro ection 48 arranged to simultaneously close the upper end of the brine tank 30; the drinking fountain 43 is provided with a suitable waste duct 49 extending wall 14 permanently assembled together, and through the front wall 14 of the cabinet 11 with a horizontal partition wall 15 permaand the mechanism chamber 17 and the wall nently assembled with the side walls 12 and 13 of the cabinet 11 to connect with a suitable rear wall 13 and front wall 14 and dividing Waste connection provided at that point; this the cabinet 11 into an upper refrigerating Waste duct 49 is provided with a branch 50 compartment 16 and a lower mechanism comterminating in a cup 51 positioned below the partment 17. w orifice 45 to receive fluid flowing or dripping Projecting inwardly from the side walls 12 from the orifice 45 and this waste duct 49 is are a pair of cleats 18 supporting a base 19 provlded with a second branch 52 extending removably secured to the cleats 18 by means upwardly through the partitlon 15 into the of bolts 20 and itself supporting a compres brlne tank 30 and terminating in the brine sor 21 prbvided with an intake duct 22 and tank at the level at which the brine is to be an outlet duct 23, an electric motor 24 opm ln lned herein crating the compressor 21 by means of a belt In addition, there-is provided within the 25, and a condenser 26 provided with an inlet mechanism chambefd? a thermostat 53 conend 27 connected to the outlet duct 23 of the. trolling the action of the motor 24 in the compressor 21, and with an outlet end 28 usual manner and having its expansible connected to a condensed refrigerant supply chamber connected b means of a duct 54 to a duct 29. bulb 55 located within the brine in the brine Mounted within the refrigerating com tank and accordin ly operative to cause partment 16 is a brine tank 30 arran ed to operation orrest of t e motor 24 and comcontain a non-congealing fluid, such as rine, pressor 21 accord1n%to the temperature of and positioned within this brine tank 30 imthe brlne within the rme tank 30. p

mersed in the brine contained therein is a From the above descr ption 1t willbe' obrefrigerant expansion coil 31 having its inlet vious to those slnlled 1n the art that I have end connected through an expansion valve provided a new and improved unitary water-' 32 to a condensed refrigerant supply duct 33 cooler. At the same time 1tcw1ll also beobfluid-cooling device,

mechanism compartment and an upper refrigerating compartment, a brine tank within said refrigerating compartment, a fluid-cooling device within said brine tank, a cooledfluid delivery duct connected to said fluidcooling device, a refrigerant expansion device also within said brine tank and disposed in a region thereof remote from the fiuld cooling device, refrigerant compressing mechanism within said mechanism compartment, and connections 0 eratively connecting said mechanism an said refrigerant expansion device.

2. A unitary fluid-cooler comprising: a cabinet provided with a partition dividing the interiorof said cabinet into a mechanism so compartment and into a refrigerating compartment open at the top, a brine tank within said refrigerating compartment also open at the top, a single removabl'e cover closing both the top of said refrigerating compartment as and the to of said brine tank, a fluid-coolin device witbin said brine tank, a cooled-flui delivery duct connected to said fluid-cooling device, a refrigerant expansion device also within said brine tank, refrigerant compress ing mechanism within said mechanism compartment,'and connections operatively connecting said mechanism and said refrigerant expansion device.

3. A unitary fluid-cooler comprising: a cabinet provided with a partition dividing the interior of said cabinet into a lower mechanism compartment and into an upper refrigerating compartment open at the top, a brine tank within said refrigerating compartment also open at the top, a single removable cover closing the top of said refrigerating compartment-and the top of said brine tank, a fluid-cooling device within said brine tank, a cooled-fluid delivery duct connected to said a refrigerant expansion device also within said brine tank, refrigerant compressing mechanism within said mechanism compartment, and connections operatively connecting said mechanism and 0 said refrigerating e ansion device.

' 4. A unitary flui I cooler comprising a cabinet havin a brine tank located therein, a

signature.

CHARLES C. SPREEN.

fluid cooling evice within said brine tank, a

refrigerant expansion device also within saidbs brine tank, sa d fluid cooling device and re- 

